The third, and obviously last, in the Museum series, so naturally we have to have something big, life tghreatening, and a final explanation of that tablet. The pluses: Apparently someone told Ben Stiller not to go out of his way to try and act funny, so that he actually worked for the role. Then we have the last appearances by Mickey Rooney and Robin Williams. No real minuses; this film is exactly what it looks like and shouldn't be taken as anything more than early bird matinee fare. I might even have rated it on my Cheesey Scale.